1040431187 has 2 divisors, whose sum is σ = 1040431188. Its totient is φ = 1040431186.

The previous prime is 1040431163. The next prime is 1040431219. The reversal of 1040431187 is 7811340401.

1040431187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040431187 - 2⁸ = 1040430931 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040431387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520215593 + 520215594.

It is an arithmetic number, because the mean of its divisors is an integer number (520215594).

Almost surely, 2^1040431187 is an apocalyptic number.

1040431187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040431187 is an equidigital number, since it uses as much as digits as its factorization.

1040431187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1040431187 is about 32255.7155710426. The cubic root of 1040431187 is about 1013.2994040776.

Adding to 1040431187 its reverse (7811340401), we get a palindrome (8851771588).

The spelling of 1040431187 in words is "one billion, forty million, four hundred thirty-one thousand, one hundred eighty-seven".